OPTICAL MEMORY DEVICE AND RECORDING/REPRODUCING INFORMATION BY USING THE SAME

摘要

PURPOSE: An optical memory device and an information recording/reproducing method by using the same are provided to play and record information at a high speed using light. CONSTITUTION: An optical memory device comprises a substrate(110), a first barrier layer(120), a quantum-well layer(130), a second barrier layer(140), a quantum dot layer(150) and a third barrier layer(160). The first barrier layer is located on top of the substrate. The quantum-well layer is located on the first barrier layer and has the energy band gap narrower than the energy band gap of the first barrier layer.